the "washington post" this evening is publishing more information from edward snowden the national security agency computer technician who is spilling the secrets of u.s. surveillance. bob orr is our homeland security correspondent. today's story say they may be stealing the communications of the networks of google and yahoo!, what did you find out about that today? >> reporter: scott, it seems n.s.a. is getting far more aggressive than it's been in pushing back of these stories based on the leaks, specifically n.s.a. chief keith alexander denied the "washington post" report which claimed that the u.s. government is using some kind of secret back door or back doors to routinely scoop up millions of communication records from users of yahoo! and google. alexander made point of saying that n.s.a. does get information from those internet search companies but only through court orders. >> pelley: bob orr in our washington newsroom. thank you, bob. in egypt, a top leader of the muslim brotherhood was arrested today by the military government, it's part of the crackdown on brotherhood which advoc